do not delete output files corresponding to non-existing sources, if these outputs are already associated with existing sources from other modules that have been already compiled (example: moving some class to a dependent module with the same output root)

java/java-tests/testData/compileServer/incremental/common/moveClassToDependentModuleWithSameOutput/moduleA/src/com/ppp/Inner.java.new

@@ -0,0 +1,4 @@
+package com.ppp;
+
+class Inner {
+}

java/java-tests/testData/compileServer/incremental/common/moveClassToDependentModuleWithSameOutput/moduleB/src/com/ppp/B.java

@@ -0,0 +1,6 @@
+package com.ppp;
+
+public class B {
+  private Inner inner;
+}
+

java/java-tests/testData/compileServer/incremental/common/moveClassToDependentModuleWithSameOutput/moduleB/src/com/ppp/Inner.java

@@ -0,0 +1,5 @@
+package com.ppp;
+
+class Inner {
+}
+